Engines Market

BMW X3 30d SPECIALISTS

BMW X3 30d Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK BMW X3 30d engine specialists. Compare prices on reconditioned, rebuilt and used BMW X3 30d engines - supply & fit available nationwide for the legendary straight-six diesel.

Supply & Fit Available
12-Month Warranty
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BMW X3 30d Engine
from£1,800 to £5,500
  • Usedfrom £1,200
  • Reconditionedfrom £2,200
  • Common codesM57D30, N57D30A, N57D30B
BMW x3 30d Used Engine — M57D30BMW x3Used Engine — M57D30BMW x3 30d Reconditioned Engine — M57D30BMW x3Reconditioned Engine — M57D30BMW x3 30d Rebuilt Engine — M57D30BMW x3Rebuilt Engine — M57D30

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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

BMW X3 30d Engine History & Specs at a Glance

The BMW X3 30d badge represents the pinnacle of diesel engineering across three generations of X3. From the bulletproof M57 in the E83 (2003-2010) to the twin-turbo N57 in the F25 (2010-2017) and the refined B57 in the G01 (2017-present), the 30d has always delivered the smooth power, effortless torque and legendary durability of BMW's straight-six diesel architecture - making it the choice for high-mileage drivers and towing users alike.

BMW X3 30d
  1. 2003

    E83 generation launches with M57D30, 204hp, 410Nm, naturally aspirated (later turbocharged)

  2. 2006

    E83 LCI updates M57D30 to 218hp, 500Nm with variable geometry turbo

  3. 2010

    F25 generation launches with N57D30A, 258hp, 560Nm, twin-turbocharged

  4. 2014

    F25 LCI introduces N57D30B, 286hp, 600Nm, with improved injectors and emissions hardware

  5. 2017

    G01 generation launches with B57D30A, 265hp, 620Nm, featuring 48V mild hybrid on later models

  6. 2020

    G01 LCI updates B57D30A with 48V MHEV system for improved efficiency and reduced lag

Every engine fitted to the BMW X3 30d is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

BMW X3 30d Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

M57D30 — 3.0L Diesel (2003-2010) engine

M57D30 — 3.0L Diesel (2003-2010)

Power Output
204-218hp
Torque
410-500Nm
Years Fitted
2003-2010 (E83)
Engine Code Variants
M57D30(306D3), M57D30(306D5)
Note
The M57 is widely regarded as BMW's most durable diesel engine - capable of 200,000+ miles with proper maintenance

Can’t find your exact engine code?-> Get quotes for M57D30 BMW X3 30d engine replacement

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Common Problems

BMW X3 30d Engine Problems Repair Cost vs Replacement

The BMW X3 30d's straight-six diesel reputation is built on durability - but even the best engines have their weak points. The M57 is legendary for longevity, the N57 adds power with complexity, and the B57 brings modern efficiency with new failure modes. Every rebuilt engine supplied through Engines Market includes upgraded components addressing the original failure point - plus a minimum 12-month unlimited-mileage warranty. Below we break down the most common X3 30d failures, what genuine repair costs look like, and when a rebuilt engine is the smarter financial decision.

Common failure points and repair options

BMW X3 30d Timing Chain Wear

Affected
BMW X3 E83 3.0d, F25 xDrive30d, G01 xDrive30d (M57D30, N57D30A/B, B57D30A)
Typical failure mileage
150,000-200,000+ miles (M57); 120,000-180,000 miles (N57/B57)
Root cause
Unlike the notorious N47 four-cylinder diesel, the straight-six M57 and N57 engines do not suffer from the same catastrophic timing chain failure rates. However, timing chain tensioner wear can occur at very high mileage, particularly if oil changes have been neglected. The chain setup is the same as the 2.0d but failure is rare on the 3.0d.

Repair options

Repair tierDealer priceSpecialist price
Minor - Timing Chain Tensioner Replacement£800-£1,200£500-£800
Major - Full Timing Chain Kit Replacement£2,200-£3,500£1,400-£2,200
Full Replacement - Rebuilt Engine (Supply & Fit)£5,500-£8,000£3,800-£5,800
Our recommendation
Listen for rattling on cold start-up - if you hear it, have a specialist inspect the timing chain tensioner immediately. The straight-six is far more resilient than the N47, but tensioner wear can still cause expensive damage if ignored. On high-mileage M57 and N57 engines, consider preventative chain replacement at 150,000 miles as scheduled maintenance.
-> Compare rebuilt BMW X3 30d engine prices from UK specialists

BMW X3 30d EGR Cooler Failure

Affected
BMW X3 F25 xDrive30d, G01 xDrive30d (N57D30A/B, B57D30A)
Typical failure mileage
70,000-130,000 miles
Root cause
The EGR cooler can develop internal cracks due to thermal cycling, allowing coolant to leak into the exhaust system. In severe cases, coolant can enter the combustion chambers, causing hydraulic lock (hydrolock) and bent connecting rods.

Repair options

Repair tierDealer priceSpecialist price
Minor - EGR Cooler Replacement Only£1,000-£1,500£550-£850
Major - Cooler + Top End Overhaul£2,800-£4,000£1,800-£2,800
Full Replacement - Rebuilt Engine (Supply & Fit)£5,500-£8,000£3,800-£5,800
Our recommendation
Check if your X3 30d has outstanding EGR cooler recall work. If you notice coolant loss, white exhaust smoke, or a burning smell, have a specialist inspect the EGR cooler immediately. A £550-£850 cooler replacement is cheap insurance against a £4,000+ engine rebuild.
-> Get quotes for BMW X3 30d EGR cooler repair and replacement

BMW X3 30d Turbocharger Failure

Affected
BMW X3 E83 3.0d, F25 xDrive30d, G01 xDrive30d (M57D30, N57D30A/B, B57D30A)
Typical failure mileage
120,000-200,000 miles (M57); 100,000-160,000 miles (N57/B57)
Root cause
Turbocharger bearings wear over high mileage, allowing the compressor wheel to contact the housing. On variable geometry turbos (N57/B57), the unison ring can seize due to carbon build-up. Symptoms include loss of power, excessive smoke, and a high-pitched whining noise.

Repair options

Repair tierDealer priceSpecialist price
Minor - Turbo Cartridge Replacement£1,800-£2,500£1,000-£1,600
Major - Reconditioned Turbo Unit£2,200-£3,000£1,300-£2,000
Full Replacement - Rebuilt Engine (Supply & Fit)£5,500-£8,000£3,800-£5,800
Our recommendation
If you hear a whining noise or experience loss of power, stop driving and have a specialist inspect the turbo immediately. A £1,000-£1,600 turbo replacement is far cheaper than a £4,000+ engine rebuild. On the M57, turbo failure is rarely an engine-killer if caught early.
-> Compare BMW X3 30d turbo replacement and engine repair costs

BMW X3 30d DPF & Injector Failure

Affected
BMW X3 F25 xDrive30d, G01 xDrive30d (N57D30A/B, B57D30A)
Typical failure mileage
80,000-150,000 miles (DPF); 90,000-160,000 miles (injectors)
Root cause
Urban driving cycles prevent active DPF regeneration, causing soot accumulation. Piezo injectors on the N57 can develop internal leakage, unburned fuel washes cylinder walls, and can cause piston damage in extreme cases.

Repair options

Repair tierDealer priceSpecialist price
Minor - DPF Clean & EGR Service£600-£900£350-£600
Intermediate - Single Injector Replacement£800-£1,200£450-£700
Intermediate - Full Set Injector Replacement£2,500-£3,500£1,400-£2,200
Full Replacement - Rebuilt Engine (Supply & Fit)£5,500-£8,000£3,800-£5,800
Our recommendation
If you only drive short urban trips, take your X3 30d on a 30-minute motorway run every few weeks to allow DPF regeneration. If the engine idles roughly or smokes excessively, have the injectors tested immediately. On N57 engines over 100k miles, consider replacing all six injectors preventatively if one fails.
-> Compare BMW X3 30d DPF and injector repair costs

Don't Let Engine Failure Write Off Your BMW X3 30d

The failures above account for the majority of BMW X3 30d engine replacement enquiries we see - EGR cooler failure on N57 and B57 units, turbocharger wear, and injector/DPF issues. The M57 remains the benchmark for diesel durability, but even the legendary straight-six needs proper maintenance. Engines Market makes it simple to compare prices from trusted UK BMW X3 30d specialists who use upgraded components specifically designed to prevent these failures from recurring. Every rebuilt engine includes a minimum 12-month unlimited-mileage warranty, nationwide delivery, and supply & fit options. Compare prices today and get back on the road without the main dealer premium.

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FAQ

BMW X3 30d Engine ReplacementFrequently Asked Questions

Everything BMW X3 30d owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

Why Choose Us

Compare BMW X3 30d Engine Prices Today

Comparing quotes for your BMW X3 30d is free, fast, and completely no-obligation. Enter your registration above to receive tailored prices from UK BMW specialists for your exact engine code and generation - whether you need a used M57D30, a reconditioned N57D30B, or a fully rebuilt B57D30A with warranty. Our network covers E83, F25 and G01 models, with supply & fit available nationwide. Get back on the road with confidence and without the main dealer premium.

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